Improvement in hinges



UNTTEDv STATES PATENT OFFICE.

SAMUEL E. HARRINGTON, OF GREENFIELD, MASSACHUSETTS.

IMPROVEMENT IN HINGES.

Specification forming part of Letters Patent No. 42,764, dated May 17,1864.

T0 all whom it may concern:

Be it known that I, SAMUEL E. EARRING- TON, of Greenfield, in the countyof Franklin and State of Massachusetts, have invented a new and ImprovedCoupling-Hinge; and I do hereby declare the following to be a t'ull,clear, and exact description of the same, reference being had to theaccompanying drawings, in which- Figure l is a view ot' my device withthe two parts attached. Fig. 2 is a view ofthe same detached. Fig. 3exhibits the rst movement in attaching the two parts. Fig. 4 exhibitsthe last operation and the attachment al o it to be completed.

lhe nature ot' my invention consists in so c nstructing a hinge orcoupling that the two parts of the same may be readily detached fromeach other without removing nuts or keys, and at the same time secure apermanent and reliable coupling not liable to become deranged.

That others may understand the construction and operation of my device,I will particularly describe it.

A is the pivot-bolt. B is a spring attached to one end of A to hold itin position. C C are two eyebolts or staples set in one of the parts,and D D are two eyebolts or staples set in the other part of theapparatus to be connected, the two parts of which are represented by EE.

The bolt A may be of greater or less length, according to the positionit is to occupy. It should be provided with two shoulders, a a', thedistance from the end of one shoulder being considerably greater thanthe other. It should also be provided with a washer, w, though thislatter is not imperative. Above the shoulder which is farthest from theend the spring B is placed, and upon it the washer w. The two ends ofthe bolt A then being passed through the eyes D and D, said eyes are putin their places and secured, and the A bolt is securely held betweenthem, as shown in Fig. 2, with the extreme ends ot' A projecting farenough to answer the requirements h( reinatter to be stated. The twoeyes C and C are secured in the opposite part in such position as willallow the eyes D D barely to sip between them, as shown in Figs. l and4..

In order to couple the two parts E and E together, the spring end of theboltA is passed through one ot' the eyes C, as shown in Fig. 3.Thebolttheu may be slipped endwise sutlicient to allow the opposite endto pass inside of the other eye C, when, if the bolt be released, thespring shoots the opposite end through the eye C, and the coupling iscompleted. To uncouple the two parts it is only necessary to reversethis operation.

This device is applicab e in very many places where bolts secured bynuts are now used, and completely obviates the inconveniences attendingthe removal ot' nuts, and also the dangers attending the use of bolts sosecured, as nuts frequently become loose and come oft', when the boltmay drop from its place at a critical moment. It is impossible also tolose or misplace any of the parts, as they are all permanently attachedto one or the other part ot' the apparatus to be coupled.

Having described myinvention, whatIclaim as new, and desire to secure byLetters Patent, 1s-

A sliding pivot-bolt passing through and confined in two eyes orbearings attached to one of two objects to be coupled together, and heldin position by a spring, in combination with two eyes or bearingsattached to the other of said objects, and through which the ends ofsaid pivot-bolt are made to pass when the coupling is completed,substantially as described, and for the purposes set forth.

SAMUEL E. HARRlNGTON.

Witnesses:

NOAH S. WELLS, GEO. GRENNELL.

